php - Serve HTML file if it exists, otherwise redirect to index with mod_rewrite -

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i'd write rewrite rule following: if of following files exist on server static html file in specific directory i'd .htaccess serve static file. otherwise, i'd id (first number after slash) passed query parameter www.gallery.com/index.php

www.gallery.com/1-driving-to-the-beach.html    www.gallery.com/2-swimming.html

example: assume www.gallery.com/2-swimming.html doesn't exist html file on server. want id=2 sent /index.php can use

<?php ob_start(); ?> <html></html> <?php file_put_contents('2-swimming.html', ob_get_contents()); ?>

questions:

  1. what rewrite rule .htaccess file should contain?
  2. how grab id in index.php when url redirected .htaccess?

add rule htaccess file in document root:

rewriteengine on rewritecond %{request_filenane} !-f rewritecond %{request_filenane} !-d rewriterule ^([0-9]+)-(.*)\.html$ /index.php?id=$1 [l]

that sends id portion of request index.php parameter id.


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